Proseries, 12v/24v jump starter, 4400 peak amps, digital display, on/off switch, usb port, 12v dc power outlet, reverse connection warning, fully automatic, prevents overcharging by monitoring & switching to maintenance mode when fully charged, led indicators, touch pad controls for ease & accuracy, built in cord management, unique recessed channel keeps power cord & cables neatly wrapped for storage, high impact molded case, rustproof & non-conductive, 50 state doe compliant.